mtg ultra rare cards Mythic Rares (25 ct.) 4 Arlinn 16 of the Rarest Magic

I wanted to incorporate Kaladesh s modules and puzzleknots into the deck and realized that Silas Renn seemed like just the Commander to keep such a deck on track

Ashes of the Abhorrent Ashes of the Abhorrent might be too narrow an answer

It also doesnt say it becomes a plains in addition to other types, so it works a bit like Blood Moon and can stop lands from doing what they should do

But you get to cast the real one later for free, so the best pattern is to play a cheap spell first and a bigger one later, like a Time Warp or Stock Up

There are those that are one off draws like Sphinx's Revelation and Memory Jar and those that are ongoing